@article{01066096, title = {An axiomatic approach for the Haj\'os theorem.}, journal = {Beitr\"age zur Algebra und Geometrie}, volume = {38}, year = {1997}, pages = {241-248}, zbl = {0885.20033}, language = {en}, url = {http://dml.mathdoc.fr/item/01066096} }
Corrádi, Keresztély; Szabó, Sándor. An axiomatic approach for the Hajós theorem.. Beiträge zur Algebra und Geometrie, Tome 38 (1997) pp. 241-248. http://gdmltest.u-ga.fr/item/01066096/